| Biddulph to Devnya | 1,516.66 mi (2,440.83 km) |
| Biddulph to Dimitrovgrad | 1,489.29 mi (2,396.78 km) |
| Biddulph to Dobrich | 1,512.88 mi (2,434.75 km) |
| Biddulph to Dospat | 1,452.04 mi (2,336.84 km) |
| Biddulph to Dupnitsa | 1,383.57 mi (2,226.64 km) |
| Biddulph to Elhovo | 1,522.02 mi (2,449.46 km) |
| Biddulph to Etropole | 1,392.03 mi (2,240.26 km) |
| Biddulph to Gabrovo | 1,442.78 mi (2,321.93 km) |
| Biddulph to Gorna Oryahovitsa | 1,445.77 mi (2,326.75 km) |
| Biddulph to Gotse Delchev | 1,439.35 mi (2,316.41 km) |
| Biddulph to Harmanli | 1,506.25 mi (2,424.07 km) |
| Biddulph to Haskovo | 1,493.24 mi (2,403.13 km) |
| Biddulph to Ihtiman | 1,402.58 mi (2,257.24 km) |
| Biddulph to Isperih | 1,466.51 mi (2,360.12 km) |
| Biddulph to Kardzhali | 1,498.30 mi (2,411.29 km) |
